html, body{background-color: #e7eaed; height:100%; margin: 0 !important; font-family: Arial, Helvetica, sans-serif;}
body{
    font-size:16px; line-height: 16px;
    /* 下面四行是设定不允许双击选中 */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.cursor-pointer{cursor: pointer;}
.list-group-item{padding:0;}
ul a{text-decoration:none; color:black; width:100%; height:100%; display: block; padding:8px 16px;}
img{width:300px; height: 350px;}

.form-check-input:focus{outline:none; box-shadow: none; -webkit-box-shadow:none;}